Golf ball

A golf ball comprising

• a core consisting of a center and at least one intermediate layer covering the center, and a cover covering the core,
• wherein the cover is formed from a cover composition containing, as a resin component, a thermoplastic polyurethane (A) and
• a polyisocyanate mixture (B) in which a urethane prepolymer (b-1) having at least two isocyanate groups or a polyisocyanate (b-2) having at least three isocyanate groups is dispersed in a thermoplastic resin (b-3) which does not substantially react with an isocyanate group;
• and
• wherein a number average molecular weight of a polyol component constituting the urethane prepolymer (b-1) is 650 or more,
• the polyisocyanate (b-2) is an isocyanurate of a diisocyanate,
• the intermediate layer has a slab hardness of 61 or more in Shore D hardness,
• the cover composition has a slab hardness of less than 30 in Shore D hardness,
• the cover has a thickness of from 0.1 mm to 0.8 mm, and
• the core has a hardness difference (Hs−Ho) between a surface hardness Hs and a center hardness Ho of from 15 to 50 in Shore D hardness,
• wherein the polyisocyanate mixture (B) has an NCO content (NCO %) of 0.1 mass % to 10.0 mass % in the case that the polyisocyanate mixture (B) contains the urethane prepolymer (b-1), and
• wherein the polyisocyanate mixture (B) has an NCO content (NCO %) of 5.0 mass % to 30.0 mass % in the case that the polyisocyanate mixture (B) contains the polyisocyanate (b-2).